Making of the Snow Monkey - ericlorenzo
The new rims are Kris Holm 29er rims, designed for "mountain unicycling".  Because they have to support the entire rider's weight on a single rim, they're very strong, very heavy, and very wide (38mm, compared to 24mm for a more typical mountain bike rim).  I wanted them mainly for the width -- the wider rim lets me get away with running lower pressures, increasing the size of the tire's contact patch and therefore its traction.

The new rims are Kris Holm 29er rims, designed for "mountain unicycling". Because they have to support the entire rider's weight on a single rim, they're very strong, very heavy, and very wide (38mm, compared to 24mm for a more typical mountain bike rim). I wanted them mainly for the width -- the wider rim lets me get away with running lower pressures, increasing the size of the tire's contact patch and therefore its traction.